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There remains a widely perceived notion — still commonly held within intellectual, academic, and policy circles in the West and elsewhere — that “Muslim” societies are especially resistant to embarking upon the path of demographic and familial change that has transformed population profiles in Europe, North America, and other “more developed” areas (un terminology). But such notions speak to a bygone era; they are utterly uninformed by the important new demographic realities that reflect today’s life patterns within the Arab world, and the greater Islamic world as well. Throughout the Ummah, or worldwide Muslim community, fertility levels are falling dramatically for countries and subnational populations — and traditional marriage...